Domestic baking oven



June 10, 1930. v, ALLEN 1,762,540

DOMEST IC BAKI NG OVEN Filed May 7, 1929 Inventor Attorney Patented June 10, 1930 UNITED STATES VERA ALLEN, OF SEATTLE, WASHINGTON DOMESTIC BAKING OVEN Application filed May 7,

My present invention relates to an improved domestic baking oven utilized as an auxiliary feature or element of a heating furnace of the hot air heating type, the oven being adapted to receive heat from the passing hot air currents as they are distributed to the hot air fines of the heating furnace. The oven is preferably located in the dome of the hot air jacket of the heating furnace, where the oven is subjected to the required heat for baking and other purposes.

The primary object of the invention is the provision of a baking oven which may be built into the dome of the heating jacket at the time of manufacturing the furnace and assembled with other parts of the furnace, or the oven may with facility be installed in the dome of existing het air furnaces now in use.

The invention consists in the novel construction and combination and arrangements of parts as will hereinafter be more fully set forth and claimed. In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention wherein the parts are combined and arranged according to the best mode I have thus far devised for the practical application of the my invention.

Figure 1 is a perspective View of a wellknown type of hot-air furnace, partly broken away to disclose the oven with which it is equipped. Figure 2 is a vertical sectional view at the top of the furnace, showing the oven in section, and Figure 3 is a detail sectional view at line 3-3 of Figure 2.

I11 order that the utility of the invention and the general arrangement of parts may readily be understood I have shown a wellknown type of hot air furnace usually employed for the heating system of houses etc. Such furnaces usually employ a central heating drum 1, with a down draft box 2 and smoke pipe 3, the coal being furnished through the fuel door 4 at the front of the furnace. The hot air jacket or casing 5 provides space for heating the air from the drum, and the heated air currents principles of 1929. Serial No. 361,145.

pass upwardly to the dome 6 of the furnace from where they are distributed through the outlet thimbles 7 to the hot air lines that extend to the rooms or spaces at various parts of the house to be heated.

The'dorne has a truncated cone shape with a depressed circular top or head 8 beneath which the oven 9 is located, and supported above the top of the drum 1 by means of transverse reinforcing straps A that are fashioned with legs B at their ends. The oven extends from the front of the dome toward the back of the furnace and its rear wall terminates preferably at the rear edge of the hot air drum. The straps A extend transversely of the oven and strengthen its bottom 16 to sustain a weight within the oven, and the legs B resting on the top of the drum elevate the oven slightly in order that hot air currents may circulate in con tact with all of the exterior faces of the walls of the oven, and thus heat the interior of the oven.

In the front of the dome an outer door 10 is provided and hinged at 11 in a door frame 12, and a latch 13 is used to secure the door in normally closed position.

The oven is of a general rectangular shape and fashioned with vertical side walls 14,

14, flanged at 15, and riveted at 15 to the door frame 12, which frame is riveted or bolted in the front wall of the dome. The bottom 16 and the top 17 of the oven are also flanged and riveted or bolted to the frame 12 in the wall of the dome, all parts of the oven being fashioned from suitable metal plates designed for the purpose.

Vithin the dome portion of the furnace, and Within the oven walls, a second or inner door 18 is hinged at 19 in an upright rectangular door frame 20 that is located transversely of the oven and bolted or riveted to its Walls, and a latch 21 is provided for this door. Thus, between the door 10 of the dome and the door 18 of the oven a warming space is provided Within the walls of the oven and in front of the oven proper. Access to this space is through the dome door. Access to the interior of the oven is through this warming space and through i a door frame and the oven door, when both doors are opened.

For venting the interior of the oven, to dispose of odors from foods that are being baked, I provide a vent pipe 22 that e);- tends from the upper portion of the rear wall of the oven and down to the clowndraft boX 2, and the draft through this box may be utilized to draw off odors from the oven, and vent the interior of the oven.

As thus constructed and arranged no material loss of heat is caused by the presence of the oven in the dome and the circulation of the hot air currents to the hot air lines is not affected, while on the other hand,

the oven is amply and adequately heated for the performance of its functions.

Having this fully described my invention, what I claim as new and desire to secure by Letters Patent is 1. The combination with a hot air furnace comprising a heating jacket and its dome, and a heating drum, of an oven in the dome and resting on the drum, a door frame in the front of the dome and means joining the walls of the oven and said frame, an outer door in said frame, an inner door frame disposed transversely vof the oven walls, and a second door in said inner frame.

2. The combination with a heating jacket and its dome and a heating drum within a furnace, of an oven supported on the drum, flanges at the front ends of the oven Walls, an outer door frame joining said flanges with the dome walls and an outer door in the frame, an inner door frame secured transversely of the walls of the oven, and an oven door in the latter frame.

3. The combination with a heating jacket, a heating drum, a draft box connected with the drum and a dome for the jacket, of an oven, spaced straps on the bottom of the oven having end feet resting on the drum, a vent pipe between the oven and boii, flanges on the front ends of the oven walls, means connecting said door frame and flanges with the dome, an outer door in the-frame, an inner frame disposed transversely of the oven and spaced from the outer door, and an inner door in o the latter frame.

In testimony whereof I afiix my signature.

VERA ALLEN. 

